PIC16CE625-04/SO - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
MPN: PIC16CE625-04/SO ✓ نشطPIC16CE625-04/SO نظرة عامة
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory (RAM), and configurable peripheral I/O. MCUs are categorized by data bus width (8-bit, 16-bit, 32-bit), instruction architecture (CISC vs RISC), and memory technology (Flash, OTP, ROM, EEPROM). The PIC16C family uses a 14-bit-wide RISC instruction set optimized for low-cost, deterministic embedded control.
Key features include 35 single-word instructions, single-cycle execution except for program branches (two-cycle), an external oscillator interface, and CMOS technology for low-power operation. The OTP program memory is one-time programmable, making the part ideal for production volumes where firmware is finalized and code-update is not required. Integrated EEPROM data memory allows non-volatile storage of calibration constants, configuration data, or user settings that survive power cycles.
The PIC16CE625-04/SO uses a Harvard architecture with separate program and data buses, a 13-bit program counter capable of addressing 8K x 14 of program memory, and an 8-level deep hardware stack. The CMOS process combined with PIC's RISC design yields predictable timing and low standby current. Peripherals include one 8-bit timer/counter (Timer0) with an 8-bit prescaler, a Watchdog Timer with its own on-chip RC oscillator for reliable operation, and programmable code protection.
Typical applications include appliance control, sensor signal conditioning front-ends, simple user-interface controllers, battery chargers, low-cost consumer electronics, and industrial control subsystems where mature 8-bit processing and EEPROM-backed parameter storage are required.
When designing with the PIC16CE625-04/SO, note that OTP memory cannot be re-programmed; for development, use a windowed ceramic package variant (PIC16CE625-04/JW) or migrate to the flash-based PIC16F628A for prototype work, then transition to OTP for cost-optimized production runs.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes that complement - but do not replace - the manufacturer datasheet.
بدائل مباشرة لـ PIC16CE625-04/SO — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16CE625-04/SO (نفس عامل الشكل والبصمة) — يختلف في Package, Program Memory Size, Program Memory Type, Operating Temperature Range, Timers.
PIC16CE625-04E/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16CE625-20/SO
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16CE625T-04E/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16CE625-04I/SO
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16CE624-04/SO
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16CE623-04/SO
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16CE625-04/SO الحدود القصوى والخصائص الكهربائية
| Core Processor | PIC |
| Core Size | 8-Bit |
| Maximum Clock Speed | 4 MHz |
| Instruction Cycle Time | 200 ns (single-cycle) |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| EEPROM Data Memory Size | 128 x 8 bytes |
| RAM Size | 128 x 8 bytes |
| Number of I/O Pins | 13 |
| Supply Voltage (Vcc/Vdd) | 3.0 V to 5.5 V |
| Oscillator Type | External |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Number of Instructions | 35 single-word |
| العلبة | 18-SOIC (0.295 inch, 7.50 mm width) |
| نوع التركيب | Surface Mount |
| نطاق درجة حرارة التشغيل | 0C to +70C (commercial) |
| حالة RoHS | Compliant |
تكوين أطراف PIC16CE625-04/SO
| دبوس 1 | RA2 — Digital I/O port A bit 2 |
| دبوس 2 | RA3 — Digital I/O port A bit 3 |
| دبوس 3 | RA4/T0CKI — Digital I/O port A bit 4 / Timer0 clock input |
| دبوس 4 | MCLR — Master clear reset input (active low) |
| دبوس 5 | VSS — Ground reference |
| دبوس 6 | RB0/INT — Digital I/O port B bit 0 / external interrupt input |
| دبوس 7 | RB1 — Digital I/O port B bit 1 |
| دبوس 8 | RB2 — Digital I/O port B bit 2 |
| دبوس 9 | RB3 — Digital I/O port B bit 3 |
| دبوس 10 | RB4 — Digital I/O port B bit 4 |
| دبوس 11 | RB5 — Digital I/O port B bit 5 |
| دبوس 12 | RB6 — Digital I/O port B bit 6 |
| دبوس 13 | RB7 — Digital I/O port B bit 7 |
| دبوس 14 | VDD — Positive supply voltage (3.0V to 5.5V) |
| دبوس 15 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| دبوس 16 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| دبوس 17 | RA0 — Digital I/O port A bit 0 |
| دبوس 18 | RA1 — Digital I/O port A bit 1 |
التطبيقات النموذجية
PIC16CE625-04/SO مناسب لـ 6 التطبيقs: Appliance Control Subsystems, Battery-Powered Sensor Front-Ends, User Interface Controllers, Battery Chargers, Low-Cost Consumer Electronics, Industrial Control Subsystems.
Appliance Control Subsystems
The PIC16CE625-04/SO fits appliance control subsystems such as washing-machine timer boards, microwave user-interface controllers, and refrigerator sensor hubs. Its 13 digital I/O pins directly drive seven-segment displays, keypads, and relay coils without external logic, while the integrated 128-byte EEPROM stores user-selected cycles, calibration offsets, and fault logs across power cycles. At 4MHz the 200ns instruction cycle handles keypad scanning, debounce, and relay sequencing in real time. The 3.0-5.5V supply range accepts rectified 5V rails from low-cost transformer supplies, and the brown-out reset prevents corruption of EEPROM during brown-out events on noisy AC mains.
موصى به
Battery-Powered Sensor Front-Ends
The PIC16CE625-04/SO is well suited to battery-powered sensor front-ends including remote thermostats, smoke-detector signal conditioners, and wireless sensor node controllers. The CMOS process combined with PIC's RISC design yields sub-mA active current at 4MHz, extending battery life in low-duty-cycle applications. The 128-byte EEPROM stores calibration coefficients for thermistor or thermopile sensors, eliminating per-unit trimming in production. Brown-out detect/reset ensures the MCU enters a known state when the battery voltage sags at end-of-life, preventing erroneous sensor readings. The 13 I/O connect directly to SPI or I2C sensor peripherals, low-battery indicator LEDs, and sleep-mode wake-up switches.
موصى به
User Interface Controllers
The PIC16CE625-04/SO drives simple user-interface controllers such as numeric keypads, LED status indicators, and rotary-encoder inputs in industrial HMI panels. Its 13 I/O pins are sufficient to scan a 4x4 matrix keypad (8 lines) plus drive 4 status LEDs with PWM via Timer0, or read a quadrature encoder (2 lines) plus 8 discrete outputs. The 3.5KB OTP holds menu-state machines and debounce routines for robust user input. EEPROM stores last-set values and operator preferences that must persist across power cycles. At 4MHz the part responds to key presses in under 1ms, well below human-perceptible latency.
موصى به
Battery Chargers
The PIC16CE625-04/SO controls NiCd, NiMH, and small lithium-ion battery chargers in consumer and industrial products. The 13 I/O pins drive charge FETs, monitor charge current via comparator inputs, and read battery voltage through discrete resistor dividers. The 128-byte EEPROM logs charge-cycle counts and last-full-charge timestamps for battery-health diagnostics. The integrated watchdog timer recovers from firmware lockup if a noise transient corrupts program flow, critical in charger safety paths. At 4MHz the part implements -dV termination, temperature-slope detection, and timer-based backup termination in a single MCU.
موصى به
Low-Cost Consumer Electronics
The PIC16CE625-04/SO powers low-cost consumer electronics including toy controllers, decorative LED displays, novelty electronics, educational kits, and remote-control key fobs. OTP memory enables sub-$1.50 unit cost at high volume, which is critical in price-sensitive consumer markets. The 3.5KB program memory holds full feature sets including button debounce, LED patterns, sound playback timing, and sleep-mode wake-up logic. The integrated 128-byte EEPROM stores user settings such as volume, mode, and timer values. Brown-out reset prevents bricking during battery insertion transients in mass-produced consumer units.
موصى به
Industrial Control Subsystems
The PIC16CE625-04/SO handles industrial control subsystems such as motor starter logic, conveyor-belt sequencing, valve controllers, and process-indicator panels. The 13 I/O pins interface to optocouplers, 24V signal-conditioning circuits, and relay-driver outputs common in factory automation. The brown-out detect/reset and watchdog timer with its own on-chip RC oscillator provide robust operation in electrically noisy industrial environments. The 128-byte EEPROM retains machine-state parameters through power cycles, avoiding re-setup after unplanned shutdowns. At 4MHz with 200ns instruction cycle, the part implements deterministic ladder-logic replacement with scan times well below 10ms.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16CE625-04/SO — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16CE625-04E/SO | PIC16CE625-20/SO | PIC16CE625T-04E/SO | PIC16CE624-04/SO | PIC16CE623-04/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (0.295 inch, 7.50 mm) | 18-SOIC (0.295 inch, 7.50 mm) - same | 18-SOIC (0.295 inch, 7.50 mm) - same | 18-SOIC (0.295 inch, 7.50 mm) - same | 18-SOIC (0.295 inch, 7.50 mm) - same | 18-SOIC (0.295 inch, 7.50 mm) - same |
| Maximum Clock Speed | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory Size | 3.5 KB (2K x 14) OTP | 3.5 KB (2K x 14) OTP | 3.5 KB (2K x 14) OTP | 3.5 KB (2K x 14) OTP | 2 KB (1K x 14) OTP | 896 B (512 x 14) OTP |
| EEPROM Data Memory | 128 x 8 bytes | 128 x 8 bytes | 128 x 8 bytes | 128 x 8 bytes | 128 x 8 bytes | 128 x 8 bytes |
| RAM Size | 128 x 8 bytes | 128 x 8 bytes | 128 x 8 bytes | 128 x 8 bytes | 128 x 8 bytes | 128 x 8 bytes |
| Number of I/O | 13 | 13 | 13 | 13 | 13 | 13 |
| Operating Temperature | 0C to +70C | -40C to +125C | 0C to +70C | -40C to +125C | 0C to +70C | 0C to +70C |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
أبرز الفروقات
- On-chip 128-byte EEPROM for non-volatile parameter storage (مقابلPIC16CE623-04/SO)
- OTP cost advantage for high-volume production (مقابلPIC16F628A (Flash-based))
- Same-family upgrade to 20MHz for higher throughput (مقابلPIC16CE625-20/SO)
ملاحظات التصميم
The PIC16CE625-04/SO operates from 3.0V to 5.5V on a single VDD pin (pin 14). Place a 100nF decoupling capacitor as close as possible to VDD, with a 10uF bulk capacitor on the supply rail. The integrated brown-out detect/reset holds the MCU in reset when VDD drops below the configured threshold, preventing EEPROM corruption during power-down. For battery applications, include a Schottky diode to block reverse-polarity connection - the absence of internal protection means reverse voltage on VDD permanently damages the part.
OTP program memory cannot be re-programmed once written. Use the windowed ceramic PIC16CE625-04/JW variant or the flash-based PIC16F628A for prototype development, then transition to the SOIC-18 OTP part for production. Verify all firmware functionality on the development part before committing to OTP programming - a single bit error in OTP code requires board rework. The MCLR pin (pin 4) must be tied to VDD through a 10kOhm resistor for normal operation; leaving MCLR floating causes intermittent resets.
The 18-pin SOIC package requires a 1.27mm pitch SOIC land pattern with pad dimensions of approximately 0.55mm x 1.9mm per JEDEC MO-012. Route the OSC1/OSC2 traces (pins 15-16) short and symmetric to minimize stray capacitance - keep traces under 5mm and use a ground guard ring around the crystal or resonator to reduce EMI susceptibility. The MCLR trace (pin 4) should also be kept short to prevent false reset triggering from capacitive coupling to switching nodes.
All 13 digital I/O pins have TTL-compatible input thresholds and CMOS output drive. Pin RA4 (pin 3) is open-drain and requires an external pull-up resistor for high-level output. Port B pins RB0-RB7 feature software-configurable weak pull-ups, eliminating external resistors for simple keypad or switch inputs. When driving LEDs directly, limit pin current to 25mA per pin and 90mA total port current to stay within absolute maximum ratings per the Microchip datasheet.
معلومات الامتثال
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - this is a commercial-grade 8-bit MCU intended for non-automotive applications.